Home / 30,276.90-45,404.55-10,556.10

Finding the Fourth Proportional to 30,276.90, 45,404.55 and 10,556.10

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Solution

The fourth proportional to 30,276.90, 45,404.55 and 10,556.10 is: 15,830.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276.90 : 45,404.55 = 10,556.10 : x
  2. Step 2: Convert to fraction form
    30,276.90/45,404.55 = 10,556.10/x
  3. Step 3: Cross multiply
    30,276.90x = 45,404.55 × 10,556.10
  4. Step 4: Simplify right side
    30,276.90x = 479,294,970.26
  5. Step 5: Solve for x
    x = 479,294,970.26/30,276.90
  6. Step 6: Final answer
    x = 15,830.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.